(0 18 13)(1 19 4)(2 7 3)(5 11 9)(6 20 16)(8 17 15)(10 14 12)
ALLOWS (11/8)-SEQUENCE
1: (6 16 20)
(0 18 13)(1 19 4)(2 7 3)(5 11 9)(6 16 20)(8 17 15)(10 14 12)
2: (0 18 13)
(0)(1 19 4)(2 7 3)(5 11 9)(6 16 20)(8 17 15)(10 14 12)(13)(18)
3: (6 16 20)
(0)(1 19 4)(2 7 3)(5 11 9)(6)(8 17 15)(10 14 12)(13)(16)(18)(20)
4: (8 17 15)
(0)(1 19 4)(2 7 3)(5 11 9)(6)(8)(10 14 12)(13)(15)(16)(17)(18)(20)